215453113550405 has 16 divisors (see below), whose sum is σ = 265252610813760. Its totient is φ = 167941613968128.

The previous prime is 215453113550393. The next prime is 215453113550429. The reversal of 215453113550405 is 504055311354512.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215453113550405 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3231601787 + ... + 3231668456.

It is an arithmetic number, because the mean of its divisors is an integer number (16578288175860).

Almost surely, 2^{215453113550405} is an apocalyptic number.

It is an amenable number.

215453113550405 is a deficient number, since it is larger than the sum of its proper divisors (49799497263355).

215453113550405 is a wasteful number, since it uses less digits than its factorization.

215453113550405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463270420.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 215453113550405 in words is "two hundred fifteen trillion, four hundred fifty-three billion, one hundred thirteen million, five hundred fifty thousand, four hundred five".